HSS Involute Gear Cutter - DP16 PA14-1/2, Bore22 No.1-8 Gear Cutters, R8 Shank, Milling Arbor Gear Mill Cutter Holder - Lathe CNC Cutting Tools

The R8 holder and cutter were contained in separate plastic boxes, ensuring maximum protection during shipment. Notably, each blade was meticulously wrapped in rust-proof paper, reflecting the care and attention to detail put into ensuring the product's longevity and quality.

Junk the cutter couldn't make light or even any cuts through mild steel spend your money on a better set

The R8 holder and cutter arrived in excellent condition, packaged separately in sturdy plastic boxes. Each blade was meticulously wrapped in rust-proof paper, ensuring their pristine state upon arrival.

I was able to cut 2, 20 tooth gears in 1215 carbon steel, there is some noticeable wear on the cutter but it still cuts. Got about 30 teeth through a 40 tooth gear in 4140 alloy steel and the cutter is trashed. I'm sure they would work fine in aluminum or plastic.

Not suitable for any machine work.

This is a good selection of gear cutters and an arbor which can also be used with slitting saws. It appears to be of decent quality and if used correctly should last a decent amount of time. A real asset to any machinist with a milling machine and can be used to make a wide variety of gears.